Gardening Calendar from the past

Here I have scanned in the gardening calendar from a Gardening book that was handed down to me by my parents.

I believe this book was made during the second world war years as it has references to how to turn gardens into food producing vegetable gardens and also how to maximise food production from and allotment.

Unfortunately the covers have long gone so the title and author is unknown to me and random text phrase searches so far have not produced any results on the internet. This must mean Google has not yet scanned this into their online reference library.